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                    类型
            
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                    基础数据类型
            
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                    常量
            
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                    结构体
            
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                    JSON
            
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                    文本和HTML模板
            
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                    函数
            
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                    函数声明
            
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                    递归
            
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                    多返回值
            
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                    函数值
            
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                    匿名函数
            
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                    可变参数
            
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                    Deferred函数
            
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                    Panic异常
            
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                    Recover捕获异常
            
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                    方法
            
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                    方法声明
            
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                    基于指针对象的方法
            
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                    通过嵌入结构体来扩展类型
            
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                    方法值和方法表达式
            
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                    示例: Bit数组
            
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                    封装
            
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                    接口
            
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                    接口是合约
            
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        <li class="chapter " data-level="1.8.2" data-path="../ch7/ch7-02.html">
            
                <a href="../ch7/ch7-02.html">
            
                    
                    接口类型
            
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        <li class="chapter " data-level="1.8.3" data-path="../ch7/ch7-03.html">
            
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                    实现接口的条件
            
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        <li class="chapter " data-level="1.8.4" data-path="../ch7/ch7-04.html">
            
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                    flag.Value接口
            
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                    接口值
            
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        <li class="chapter " data-level="1.8.6" data-path="../ch7/ch7-06.html">
            
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                    sort.Interface接口
            
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        <li class="chapter " data-level="1.8.7" data-path="../ch7/ch7-07.html">
            
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                    http.Handler接口
            
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        <li class="chapter " data-level="1.8.8" data-path="../ch7/ch7-08.html">
            
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                    error接口
            
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                    示例: 表达式求值
            
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        <li class="chapter " data-level="1.8.10" data-path="../ch7/ch7-10.html">
            
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                    类型断言
            
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        <li class="chapter " data-level="1.8.11" data-path="../ch7/ch7-11.html">
            
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                    基于类型断言识别错误类型
            
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        <li class="chapter " data-level="1.8.12" data-path="../ch7/ch7-12.html">
            
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                    通过类型断言查询接口
            
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        <li class="chapter " data-level="1.8.13" data-path="../ch7/ch7-13.html">
            
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                    类型分支
            
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        <li class="chapter " data-level="1.8.14" data-path="../ch7/ch7-14.html">
            
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                    示例: 基于标记的XML解码
            
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                    补充几点
            
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        <li class="chapter " data-level="1.9" data-path="../ch8/ch8.html">
            
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                    Goroutines和Channels
            
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                    Goroutines
            
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        <li class="chapter " data-level="1.9.2" data-path="../ch8/ch8-02.html">
            
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                    示例: 并发的Clock服务
            
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        <li class="chapter " data-level="1.9.3" data-path="../ch8/ch8-03.html">
            
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                    示例: 并发的Echo服务
            
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        <li class="chapter " data-level="1.9.4" data-path="../ch8/ch8-04.html">
            
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                    Channels
            
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        <li class="chapter " data-level="1.9.5" data-path="../ch8/ch8-05.html">
            
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                    并发的循环
            
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        <li class="chapter " data-level="1.9.6" data-path="../ch8/ch8-06.html">
            
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                    示例: 并发的Web爬虫
            
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        <li class="chapter " data-level="1.9.7" data-path="../ch8/ch8-07.html">
            
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                    基于select的多路复用
            
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        <li class="chapter " data-level="1.9.8" data-path="../ch8/ch8-08.html">
            
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                    示例: 并发的目录遍历
            
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        <li class="chapter " data-level="1.9.9" data-path="../ch8/ch8-09.html">
            
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                    并发的退出
            
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        <li class="chapter " data-level="1.9.10" data-path="../ch8/ch8-10.html">
            
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                    示例: 聊天服务
            
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        <li class="chapter " data-level="1.10" data-path="../ch9/ch9.html">
            
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                    基于共享变量的并发
            
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        <li class="chapter " data-level="1.10.1" data-path="../ch9/ch9-01.html">
            
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                    竞争条件
            
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        <li class="chapter " data-level="1.10.2" data-path="../ch9/ch9-02.html">
            
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                    sync.Mutex互斥锁
            
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        <li class="chapter " data-level="1.10.3" data-path="../ch9/ch9-03.html">
            
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                    sync.RWMutex读写锁
            
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        <li class="chapter " data-level="1.10.4" data-path="../ch9/ch9-04.html">
            
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                    内存同步
            
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                    sync.Once惰性初始化
            
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                    竞争条件检测
            
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        <li class="chapter " data-level="1.10.7" data-path="../ch9/ch9-07.html">
            
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                    示例: 并发的非阻塞缓存
            
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        <li class="chapter " data-level="1.10.8" data-path="../ch9/ch9-08.html">
            
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                    Goroutines和线程
            
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                    包和工具
            
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                    包简介
            
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                    包声明
            
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                    导入声明
            
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                    包的匿名导入
            
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                    包和命名
            
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                    工具
            
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                    测试
            
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                    go test
            
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                    测试函数
            
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                    测试覆盖率
            
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                    基准测试
            
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                    剖析
            
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                    示例函数
            
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            </ul>
            
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        <li class="chapter " data-level="1.13" data-path="../ch12/ch12.html">
            
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                    反射
            
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                    为何需要反射?
            
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                    reflect.Type和reflect.Value
            
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                    Display递归打印
            
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        <li class="chapter " data-level="1.13.4" data-path="../ch12/ch12-04.html">
            
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                    示例: 编码S表达式
            
                </a>
            

            
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        <li class="chapter " data-level="1.13.5" data-path="../ch12/ch12-05.html">
            
                <a href="../ch12/ch12-05.html">
            
                    
                    通过reflect.Value修改值
            
                </a>
            

            
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        <li class="chapter " data-level="1.13.6" data-path="../ch12/ch12-06.html">
            
                <a href="../ch12/ch12-06.html">
            
                    
                    示例: 解码S表达式
            
                </a>
            

            
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        <li class="chapter " data-level="1.13.7" data-path="../ch12/ch12-07.html">
            
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                    获取结构体字段标签
            
                </a>
            

            
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        <li class="chapter " data-level="1.13.8" data-path="../ch12/ch12-08.html">
            
                <a href="../ch12/ch12-08.html">
            
                    
                    显示一个类型的方法集
            
                </a>
            

            
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        <li class="chapter " data-level="1.13.9" data-path="../ch12/ch12-09.html">
            
                <a href="../ch12/ch12-09.html">
            
                    
                    几点忠告
            
                </a>
            

            
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        <li class="chapter " data-level="1.14" data-path="../ch13/ch13.html">
            
                <a href="../ch13/ch13.html">
            
                    
                    底层编程
            
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                    unsafe.Sizeof, Alignof 和 Offsetof
            
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        <li class="chapter " data-level="1.14.2" data-path="../ch13/ch13-02.html">
            
                <a href="../ch13/ch13-02.html">
            
                    
                    unsafe.Pointer
            
                </a>
            

            
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        <li class="chapter " data-level="1.14.3" data-path="../ch13/ch13-03.html">
            
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                    示例: 深度相等判断
            
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        <li class="chapter " data-level="1.14.4" data-path="../ch13/ch13-04.html">
            
                <a href="../ch13/ch13-04.html">
            
                    
                    通过cgo调用C代码
            
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        <li class="chapter " data-level="1.14.5" data-path="../ch13/ch13-05.html">
            
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                    几点忠告
            
                </a>
            

            
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                    附录
            
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                    附录A：原文勘误
            
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                    附录B：作者译者
            
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                    附录C：译文授权
            
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                    附录D：其它语言
            
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                                <h2 id="25-&#x7C7B;&#x578B;">2.5. &#x7C7B;&#x578B;</h2>
<p>&#x53D8;&#x91CF;&#x6216;&#x8868;&#x8FBE;&#x5F0F;&#x7684;&#x7C7B;&#x578B;&#x5B9A;&#x4E49;&#x4E86;&#x5BF9;&#x5E94;&#x5B58;&#x50A8;&#x503C;&#x7684;&#x5C5E;&#x6027;&#x7279;&#x5F81;&#xFF0C;&#x4F8B;&#x5982;&#x6570;&#x503C;&#x5728;&#x5185;&#x5B58;&#x7684;&#x5B58;&#x50A8;&#x5927;&#x5C0F;&#xFF08;&#x6216;&#x8005;&#x662F;&#x5143;&#x7D20;&#x7684;bit&#x4E2A;&#x6570;&#xFF09;&#xFF0C;&#x5B83;&#x4EEC;&#x5728;&#x5185;&#x90E8;&#x662F;&#x5982;&#x4F55;&#x8868;&#x8FBE;&#x7684;&#xFF0C;&#x662F;&#x5426;&#x652F;&#x6301;&#x4E00;&#x4E9B;&#x64CD;&#x4F5C;&#x7B26;&#xFF0C;&#x4EE5;&#x53CA;&#x5B83;&#x4EEC;&#x81EA;&#x5DF1;&#x5173;&#x8054;&#x7684;&#x65B9;&#x6CD5;&#x96C6;&#x7B49;&#x3002;</p>
<p>&#x5728;&#x4EFB;&#x4F55;&#x7A0B;&#x5E8F;&#x4E2D;&#x90FD;&#x4F1A;&#x5B58;&#x5728;&#x4E00;&#x4E9B;&#x53D8;&#x91CF;&#x6709;&#x7740;&#x76F8;&#x540C;&#x7684;&#x5185;&#x90E8;&#x7ED3;&#x6784;&#xFF0C;&#x4F46;&#x662F;&#x5374;&#x8868;&#x793A;&#x5B8C;&#x5168;&#x4E0D;&#x540C;&#x7684;&#x6982;&#x5FF5;&#x3002;&#x4F8B;&#x5982;&#xFF0C;&#x4E00;&#x4E2A;int&#x7C7B;&#x578B;&#x7684;&#x53D8;&#x91CF;&#x53EF;&#x4EE5;&#x7528;&#x6765;&#x8868;&#x793A;&#x4E00;&#x4E2A;&#x5FAA;&#x73AF;&#x7684;&#x8FED;&#x4EE3;&#x7D22;&#x5F15;&#x3001;&#x6216;&#x8005;&#x4E00;&#x4E2A;&#x65F6;&#x95F4;&#x6233;&#x3001;&#x6216;&#x8005;&#x4E00;&#x4E2A;&#x6587;&#x4EF6;&#x63CF;&#x8FF0;&#x7B26;&#x3001;&#x6216;&#x8005;&#x4E00;&#x4E2A;&#x6708;&#x4EFD;&#xFF1B;&#x4E00;&#x4E2A;float64&#x7C7B;&#x578B;&#x7684;&#x53D8;&#x91CF;&#x53EF;&#x4EE5;&#x7528;&#x6765;&#x8868;&#x793A;&#x6BCF;&#x79D2;&#x79FB;&#x52A8;&#x51E0;&#x7C73;&#x7684;&#x901F;&#x5EA6;&#x3001;&#x6216;&#x8005;&#x662F;&#x4E0D;&#x540C;&#x6E29;&#x5EA6;&#x5355;&#x4F4D;&#x4E0B;&#x7684;&#x6E29;&#x5EA6;&#xFF1B;&#x4E00;&#x4E2A;&#x5B57;&#x7B26;&#x4E32;&#x53EF;&#x4EE5;&#x7528;&#x6765;&#x8868;&#x793A;&#x4E00;&#x4E2A;&#x5BC6;&#x7801;&#x6216;&#x8005;&#x4E00;&#x4E2A;&#x989C;&#x8272;&#x7684;&#x540D;&#x79F0;&#x3002;</p>
<p>&#x4E00;&#x4E2A;&#x7C7B;&#x578B;&#x58F0;&#x660E;&#x8BED;&#x53E5;&#x521B;&#x5EFA;&#x4E86;&#x4E00;&#x4E2A;&#x65B0;&#x7684;&#x7C7B;&#x578B;&#x540D;&#x79F0;&#xFF0C;&#x548C;&#x73B0;&#x6709;&#x7C7B;&#x578B;&#x5177;&#x6709;&#x76F8;&#x540C;&#x7684;&#x5E95;&#x5C42;&#x7ED3;&#x6784;&#x3002;&#x65B0;&#x547D;&#x540D;&#x7684;&#x7C7B;&#x578B;&#x63D0;&#x4F9B;&#x4E86;&#x4E00;&#x4E2A;&#x65B9;&#x6CD5;&#xFF0C;&#x7528;&#x6765;&#x5206;&#x9694;&#x4E0D;&#x540C;&#x6982;&#x5FF5;&#x7684;&#x7C7B;&#x578B;&#xFF0C;&#x8FD9;&#x6837;&#x5373;&#x4F7F;&#x5B83;&#x4EEC;&#x5E95;&#x5C42;&#x7C7B;&#x578B;&#x76F8;&#x540C;&#x4E5F;&#x662F;&#x4E0D;&#x517C;&#x5BB9;&#x7684;&#x3002;</p>
<pre><code class="lang-Go"><span class="hljs-keyword">type</span> &#x7C7B;&#x578B;&#x540D;&#x5B57; &#x5E95;&#x5C42;&#x7C7B;&#x578B;
</code></pre>
<p>&#x7C7B;&#x578B;&#x58F0;&#x660E;&#x8BED;&#x53E5;&#x4E00;&#x822C;&#x51FA;&#x73B0;&#x5728;&#x5305;&#x4E00;&#x7EA7;&#xFF0C;&#x56E0;&#x6B64;&#x5982;&#x679C;&#x65B0;&#x521B;&#x5EFA;&#x7684;&#x7C7B;&#x578B;&#x540D;&#x5B57;&#x7684;&#x9996;&#x5B57;&#x7B26;&#x5927;&#x5199;&#xFF0C;&#x5219;&#x5728;&#x5305;&#x5916;&#x90E8;&#x4E5F;&#x53EF;&#x4EE5;&#x4F7F;&#x7528;&#x3002;</p>
<p>&#x8BD1;&#x6CE8;&#xFF1A;&#x5BF9;&#x4E8E;&#x4E2D;&#x6587;&#x6C49;&#x5B57;&#xFF0C;Unicode&#x6807;&#x5FD7;&#x90FD;&#x4F5C;&#x4E3A;&#x5C0F;&#x5199;&#x5B57;&#x6BCD;&#x5904;&#x7406;&#xFF0C;&#x56E0;&#x6B64;&#x4E2D;&#x6587;&#x7684;&#x547D;&#x540D;&#x9ED8;&#x8BA4;&#x4E0D;&#x80FD;&#x5BFC;&#x51FA;&#xFF1B;&#x4E0D;&#x8FC7;&#x56FD;&#x5185;&#x7684;&#x7528;&#x6237;&#x9488;&#x5BF9;&#x8BE5;&#x95EE;&#x9898;&#x63D0;&#x51FA;&#x4E86;&#x4E0D;&#x540C;&#x7684;&#x770B;&#x6CD5;&#xFF0C;&#x6839;&#x636E;RobPike&#x7684;&#x56DE;&#x590D;&#xFF0C;&#x5728;Go2&#x4E2D;&#x6709;&#x53EF;&#x80FD;&#x4F1A;&#x5C06;&#x4E2D;&#x65E5;&#x97E9;&#x7B49;&#x5B57;&#x7B26;&#x5F53;&#x4F5C;&#x5927;&#x5199;&#x5B57;&#x6BCD;&#x5904;&#x7406;&#x3002;&#x4E0B;&#x9762;&#x662F;RobPik&#x5728; <a href="https://github.com/golang/go/issues/5763" target="_blank">Issue763</a> &#x7684;&#x56DE;&#x590D;&#xFF1A;</p>
<blockquote>
<p>A solution that&apos;s been kicking around for a while:</p>
<p>For Go 2 (can&apos;t do it before then): Change the definition to &#x201C;lower case letters and <em> are package-local; all else is exported&#x201D;. Then with non-cased languages, such as Japanese, we can write &#x65E5;&#x672C;&#x8BED; for an exported name and </em>&#x65E5;&#x672C;&#x8BED; for a local name. This rule has no effect, relative to the Go 1 rule, with cased languages. They behave exactly the same.</p>
</blockquote>
<p>&#x4E3A;&#x4E86;&#x8BF4;&#x660E;&#x7C7B;&#x578B;&#x58F0;&#x660E;&#xFF0C;&#x6211;&#x4EEC;&#x5C06;&#x4E0D;&#x540C;&#x6E29;&#x5EA6;&#x5355;&#x4F4D;&#x5206;&#x522B;&#x5B9A;&#x4E49;&#x4E3A;&#x4E0D;&#x540C;&#x7684;&#x7C7B;&#x578B;&#xFF1A;</p>
<p><u><i>gopl.io/ch2/tempconv0</i></u></p>
<pre><code class="lang-Go"><span class="hljs-comment">// Package tempconv performs Celsius and Fahrenheit temperature computations.</span>
<span class="hljs-keyword">package</span> tempconv

<span class="hljs-keyword">import</span> <span class="hljs-string">&quot;fmt&quot;</span>

<span class="hljs-keyword">type</span> Celsius <span class="hljs-keyword">float64</span>    <span class="hljs-comment">// &#x6444;&#x6C0F;&#x6E29;&#x5EA6;</span>
<span class="hljs-keyword">type</span> Fahrenheit <span class="hljs-keyword">float64</span> <span class="hljs-comment">// &#x534E;&#x6C0F;&#x6E29;&#x5EA6;</span>

<span class="hljs-keyword">const</span> (
    AbsoluteZeroC Celsius = <span class="hljs-number">-273.15</span> <span class="hljs-comment">// &#x7EDD;&#x5BF9;&#x96F6;&#x5EA6;</span>
    FreezingC     Celsius = <span class="hljs-number">0</span>       <span class="hljs-comment">// &#x7ED3;&#x51B0;&#x70B9;&#x6E29;&#x5EA6;</span>
    BoilingC      Celsius = <span class="hljs-number">100</span>     <span class="hljs-comment">// &#x6CB8;&#x6C34;&#x6E29;&#x5EA6;</span>
)

<span class="hljs-keyword">func</span> CToF(c Celsius) Fahrenheit { <span class="hljs-keyword">return</span> Fahrenheit(c*<span class="hljs-number">9</span>/<span class="hljs-number">5</span> + <span class="hljs-number">32</span>) }

<span class="hljs-keyword">func</span> FToC(f Fahrenheit) Celsius { <span class="hljs-keyword">return</span> Celsius((f - <span class="hljs-number">32</span>) * <span class="hljs-number">5</span> / <span class="hljs-number">9</span>) }
</code></pre>
<p>&#x6211;&#x4EEC;&#x5728;&#x8FD9;&#x4E2A;&#x5305;&#x58F0;&#x660E;&#x4E86;&#x4E24;&#x79CD;&#x7C7B;&#x578B;&#xFF1A;Celsius&#x548C;Fahrenheit&#x5206;&#x522B;&#x5BF9;&#x5E94;&#x4E0D;&#x540C;&#x7684;&#x6E29;&#x5EA6;&#x5355;&#x4F4D;&#x3002;&#x5B83;&#x4EEC;&#x867D;&#x7136;&#x6709;&#x7740;&#x76F8;&#x540C;&#x7684;&#x5E95;&#x5C42;&#x7C7B;&#x578B;float64&#xFF0C;&#x4F46;&#x662F;&#x5B83;&#x4EEC;&#x662F;&#x4E0D;&#x540C;&#x7684;&#x6570;&#x636E;&#x7C7B;&#x578B;&#xFF0C;&#x56E0;&#x6B64;&#x5B83;&#x4EEC;&#x4E0D;&#x53EF;&#x4EE5;&#x88AB;&#x76F8;&#x4E92;&#x6BD4;&#x8F83;&#x6216;&#x6DF7;&#x5728;&#x4E00;&#x4E2A;&#x8868;&#x8FBE;&#x5F0F;&#x8FD0;&#x7B97;&#x3002;&#x523B;&#x610F;&#x533A;&#x5206;&#x7C7B;&#x578B;&#xFF0C;&#x53EF;&#x4EE5;&#x907F;&#x514D;&#x4E00;&#x4E9B;&#x50CF;&#x65E0;&#x610F;&#x4E2D;&#x4F7F;&#x7528;&#x4E0D;&#x540C;&#x5355;&#x4F4D;&#x7684;&#x6E29;&#x5EA6;&#x6DF7;&#x5408;&#x8BA1;&#x7B97;&#x5BFC;&#x81F4;&#x7684;&#x9519;&#x8BEF;&#xFF1B;&#x56E0;&#x6B64;&#x9700;&#x8981;&#x4E00;&#x4E2A;&#x7C7B;&#x4F3C;Celsius(t)&#x6216;Fahrenheit(t)&#x5F62;&#x5F0F;&#x7684;&#x663E;&#x5F0F;&#x8F6C;&#x578B;&#x64CD;&#x4F5C;&#x624D;&#x80FD;&#x5C06;float64&#x8F6C;&#x4E3A;&#x5BF9;&#x5E94;&#x7684;&#x7C7B;&#x578B;&#x3002;Celsius(t)&#x548C;Fahrenheit(t)&#x662F;&#x7C7B;&#x578B;&#x8F6C;&#x6362;&#x64CD;&#x4F5C;&#xFF0C;&#x5B83;&#x4EEC;&#x5E76;&#x4E0D;&#x662F;&#x51FD;&#x6570;&#x8C03;&#x7528;&#x3002;&#x7C7B;&#x578B;&#x8F6C;&#x6362;&#x4E0D;&#x4F1A;&#x6539;&#x53D8;&#x503C;&#x672C;&#x8EAB;&#xFF0C;&#x4F46;&#x662F;&#x4F1A;&#x4F7F;&#x5B83;&#x4EEC;&#x7684;&#x8BED;&#x4E49;&#x53D1;&#x751F;&#x53D8;&#x5316;&#x3002;&#x53E6;&#x4E00;&#x65B9;&#x9762;&#xFF0C;CToF&#x548C;FToC&#x4E24;&#x4E2A;&#x51FD;&#x6570;&#x5219;&#x662F;&#x5BF9;&#x4E0D;&#x540C;&#x6E29;&#x5EA6;&#x5355;&#x4F4D;&#x4E0B;&#x7684;&#x6E29;&#x5EA6;&#x8FDB;&#x884C;&#x6362;&#x7B97;&#xFF0C;&#x5B83;&#x4EEC;&#x4F1A;&#x8FD4;&#x56DE;&#x4E0D;&#x540C;&#x7684;&#x503C;&#x3002;</p>
<p>&#x5BF9;&#x4E8E;&#x6BCF;&#x4E00;&#x4E2A;&#x7C7B;&#x578B;T&#xFF0C;&#x90FD;&#x6709;&#x4E00;&#x4E2A;&#x5BF9;&#x5E94;&#x7684;&#x7C7B;&#x578B;&#x8F6C;&#x6362;&#x64CD;&#x4F5C;T(x)&#xFF0C;&#x7528;&#x4E8E;&#x5C06;x&#x8F6C;&#x4E3A;T&#x7C7B;&#x578B;&#xFF08;&#x8BD1;&#x6CE8;&#xFF1A;&#x5982;&#x679C;T&#x662F;&#x6307;&#x9488;&#x7C7B;&#x578B;&#xFF0C;&#x53EF;&#x80FD;&#x4F1A;&#x9700;&#x8981;&#x7528;&#x5C0F;&#x62EC;&#x5F27;&#x5305;&#x88C5;T&#xFF0C;&#x6BD4;&#x5982;<code>(*int)(0)</code>&#xFF09;&#x3002;&#x53EA;&#x6709;&#x5F53;&#x4E24;&#x4E2A;&#x7C7B;&#x578B;&#x7684;&#x5E95;&#x5C42;&#x57FA;&#x7840;&#x7C7B;&#x578B;&#x76F8;&#x540C;&#x65F6;&#xFF0C;&#x624D;&#x5141;&#x8BB8;&#x8FD9;&#x79CD;&#x8F6C;&#x578B;&#x64CD;&#x4F5C;&#xFF0C;&#x6216;&#x8005;&#x662F;&#x4E24;&#x8005;&#x90FD;&#x662F;&#x6307;&#x5411;&#x76F8;&#x540C;&#x5E95;&#x5C42;&#x7ED3;&#x6784;&#x7684;&#x6307;&#x9488;&#x7C7B;&#x578B;&#xFF0C;&#x8FD9;&#x4E9B;&#x8F6C;&#x6362;&#x53EA;&#x6539;&#x53D8;&#x7C7B;&#x578B;&#x800C;&#x4E0D;&#x4F1A;&#x5F71;&#x54CD;&#x503C;&#x672C;&#x8EAB;&#x3002;&#x5982;&#x679C;x&#x662F;&#x53EF;&#x4EE5;&#x8D4B;&#x503C;&#x7ED9;T&#x7C7B;&#x578B;&#x7684;&#x503C;&#xFF0C;&#x90A3;&#x4E48;x&#x5FC5;&#x7136;&#x4E5F;&#x53EF;&#x4EE5;&#x88AB;&#x8F6C;&#x4E3A;T&#x7C7B;&#x578B;&#xFF0C;&#x4F46;&#x662F;&#x4E00;&#x822C;&#x6CA1;&#x6709;&#x8FD9;&#x4E2A;&#x5FC5;&#x8981;&#x3002;</p>
<p>&#x6570;&#x503C;&#x7C7B;&#x578B;&#x4E4B;&#x95F4;&#x7684;&#x8F6C;&#x578B;&#x4E5F;&#x662F;&#x5141;&#x8BB8;&#x7684;&#xFF0C;&#x5E76;&#x4E14;&#x5728;&#x5B57;&#x7B26;&#x4E32;&#x548C;&#x4E00;&#x4E9B;&#x7279;&#x5B9A;&#x7C7B;&#x578B;&#x7684;slice&#x4E4B;&#x95F4;&#x4E5F;&#x662F;&#x53EF;&#x4EE5;&#x8F6C;&#x6362;&#x7684;&#xFF0C;&#x5728;&#x4E0B;&#x4E00;&#x7AE0;&#x6211;&#x4EEC;&#x4F1A;&#x770B;&#x5230;&#x8FD9;&#x6837;&#x7684;&#x4F8B;&#x5B50;&#x3002;&#x8FD9;&#x7C7B;&#x8F6C;&#x6362;&#x53EF;&#x80FD;&#x6539;&#x53D8;&#x503C;&#x7684;&#x8868;&#x73B0;&#x3002;&#x4F8B;&#x5982;&#xFF0C;&#x5C06;&#x4E00;&#x4E2A;&#x6D6E;&#x70B9;&#x6570;&#x8F6C;&#x4E3A;&#x6574;&#x6570;&#x5C06;&#x4E22;&#x5F03;&#x5C0F;&#x6570;&#x90E8;&#x5206;&#xFF0C;&#x5C06;&#x4E00;&#x4E2A;&#x5B57;&#x7B26;&#x4E32;&#x8F6C;&#x4E3A;<code>[]byte</code>&#x7C7B;&#x578B;&#x7684;slice&#x5C06;&#x62F7;&#x8D1D;&#x4E00;&#x4E2A;&#x5B57;&#x7B26;&#x4E32;&#x6570;&#x636E;&#x7684;&#x526F;&#x672C;&#x3002;&#x5728;&#x4EFB;&#x4F55;&#x60C5;&#x51B5;&#x4E0B;&#xFF0C;&#x8FD0;&#x884C;&#x65F6;&#x4E0D;&#x4F1A;&#x53D1;&#x751F;&#x8F6C;&#x6362;&#x5931;&#x8D25;&#x7684;&#x9519;&#x8BEF;&#xFF08;&#x8BD1;&#x6CE8;: &#x9519;&#x8BEF;&#x53EA;&#x4F1A;&#x53D1;&#x751F;&#x5728;&#x7F16;&#x8BD1;&#x9636;&#x6BB5;&#xFF09;&#x3002;</p>
<p>&#x5E95;&#x5C42;&#x6570;&#x636E;&#x7C7B;&#x578B;&#x51B3;&#x5B9A;&#x4E86;&#x5185;&#x90E8;&#x7ED3;&#x6784;&#x548C;&#x8868;&#x8FBE;&#x65B9;&#x5F0F;&#xFF0C;&#x4E5F;&#x51B3;&#x5B9A;&#x662F;&#x5426;&#x53EF;&#x4EE5;&#x50CF;&#x5E95;&#x5C42;&#x7C7B;&#x578B;&#x4E00;&#x6837;&#x5BF9;&#x5185;&#x7F6E;&#x8FD0;&#x7B97;&#x7B26;&#x7684;&#x652F;&#x6301;&#x3002;&#x8FD9;&#x610F;&#x5473;&#x7740;&#xFF0C;Celsius&#x548C;Fahrenheit&#x7C7B;&#x578B;&#x7684;&#x7B97;&#x672F;&#x8FD0;&#x7B97;&#x884C;&#x4E3A;&#x548C;&#x5E95;&#x5C42;&#x7684;float64&#x7C7B;&#x578B;&#x662F;&#x4E00;&#x6837;&#x7684;&#xFF0C;&#x6B63;&#x5982;&#x6211;&#x4EEC;&#x6240;&#x671F;&#x671B;&#x7684;&#x90A3;&#x6837;&#x3002;</p>
<pre><code class="lang-Go">fmt.Printf(<span class="hljs-string">&quot;%g\n&quot;</span>, BoilingC-FreezingC) <span class="hljs-comment">// &quot;100&quot; &#xB0;C</span>
boilingF := CToF(BoilingC)
fmt.Printf(<span class="hljs-string">&quot;%g\n&quot;</span>, boilingF-CToF(FreezingC)) <span class="hljs-comment">// &quot;180&quot; &#xB0;F</span>
fmt.Printf(<span class="hljs-string">&quot;%g\n&quot;</span>, boilingF-FreezingC)       <span class="hljs-comment">// compile error: type mismatch</span>
</code></pre>
<p>&#x6BD4;&#x8F83;&#x8FD0;&#x7B97;&#x7B26;<code>==</code>&#x548C;<code>&lt;</code>&#x4E5F;&#x53EF;&#x4EE5;&#x7528;&#x6765;&#x6BD4;&#x8F83;&#x4E00;&#x4E2A;&#x547D;&#x540D;&#x7C7B;&#x578B;&#x7684;&#x53D8;&#x91CF;&#x548C;&#x53E6;&#x4E00;&#x4E2A;&#x6709;&#x76F8;&#x540C;&#x7C7B;&#x578B;&#x7684;&#x53D8;&#x91CF;&#xFF0C;&#x6216;&#x6709;&#x7740;&#x76F8;&#x540C;&#x5E95;&#x5C42;&#x7C7B;&#x578B;&#x7684;&#x672A;&#x547D;&#x540D;&#x7C7B;&#x578B;&#x7684;&#x503C;&#x4E4B;&#x95F4;&#x505A;&#x6BD4;&#x8F83;&#x3002;&#x4F46;&#x662F;&#x5982;&#x679C;&#x4E24;&#x4E2A;&#x503C;&#x6709;&#x7740;&#x4E0D;&#x540C;&#x7684;&#x7C7B;&#x578B;&#xFF0C;&#x5219;&#x4E0D;&#x80FD;&#x76F4;&#x63A5;&#x8FDB;&#x884C;&#x6BD4;&#x8F83;&#xFF1A;</p>
<pre><code class="lang-Go"><span class="hljs-keyword">var</span> c Celsius
<span class="hljs-keyword">var</span> f Fahrenheit
fmt.Println(c == <span class="hljs-number">0</span>)          <span class="hljs-comment">// &quot;true&quot;</span>
fmt.Println(f &gt;= <span class="hljs-number">0</span>)          <span class="hljs-comment">// &quot;true&quot;</span>
fmt.Println(c == f)          <span class="hljs-comment">// compile error: type mismatch</span>
fmt.Println(c == Celsius(f)) <span class="hljs-comment">// &quot;true&quot;!</span>
</code></pre>
<p>&#x6CE8;&#x610F;&#x6700;&#x540E;&#x90A3;&#x4E2A;&#x8BED;&#x53E5;&#x3002;&#x5C3D;&#x7BA1;&#x770B;&#x8D77;&#x6765;&#x50CF;&#x51FD;&#x6570;&#x8C03;&#x7528;&#xFF0C;&#x4F46;&#x662F;Celsius(f)&#x662F;&#x7C7B;&#x578B;&#x8F6C;&#x6362;&#x64CD;&#x4F5C;&#xFF0C;&#x5B83;&#x5E76;&#x4E0D;&#x4F1A;&#x6539;&#x53D8;&#x503C;&#xFF0C;&#x4EC5;&#x4EC5;&#x662F;&#x6539;&#x53D8;&#x503C;&#x7684;&#x7C7B;&#x578B;&#x800C;&#x5DF2;&#x3002;&#x6D4B;&#x8BD5;&#x4E3A;&#x771F;&#x7684;&#x539F;&#x56E0;&#x662F;&#x56E0;&#x4E3A;c&#x548C;g&#x90FD;&#x662F;&#x96F6;&#x503C;&#x3002;</p>
<p>&#x4E00;&#x4E2A;&#x547D;&#x540D;&#x7684;&#x7C7B;&#x578B;&#x53EF;&#x4EE5;&#x63D0;&#x4F9B;&#x4E66;&#x5199;&#x65B9;&#x4FBF;&#xFF0C;&#x7279;&#x522B;&#x662F;&#x53EF;&#x4EE5;&#x907F;&#x514D;&#x4E00;&#x904D;&#x53C8;&#x4E00;&#x904D;&#x5730;&#x4E66;&#x5199;&#x590D;&#x6742;&#x7C7B;&#x578B;&#xFF08;&#x8BD1;&#x6CE8;&#xFF1A;&#x4F8B;&#x5982;&#x7528;&#x533F;&#x540D;&#x7684;&#x7ED3;&#x6784;&#x4F53;&#x5B9A;&#x4E49;&#x53D8;&#x91CF;&#xFF09;&#x3002;&#x867D;&#x7136;&#x5BF9;&#x4E8E;&#x50CF;float64&#x8FD9;&#x79CD;&#x7B80;&#x5355;&#x7684;&#x5E95;&#x5C42;&#x7C7B;&#x578B;&#x6CA1;&#x6709;&#x7B80;&#x6D01;&#x5F88;&#x591A;&#xFF0C;&#x4F46;&#x662F;&#x5982;&#x679C;&#x662F;&#x590D;&#x6742;&#x7684;&#x7C7B;&#x578B;&#x5C06;&#x4F1A;&#x7B80;&#x6D01;&#x5F88;&#x591A;&#xFF0C;&#x7279;&#x522B;&#x662F;&#x6211;&#x4EEC;&#x5373;&#x5C06;&#x8BA8;&#x8BBA;&#x7684;&#x7ED3;&#x6784;&#x4F53;&#x7C7B;&#x578B;&#x3002;</p>
<p>&#x547D;&#x540D;&#x7C7B;&#x578B;&#x8FD8;&#x53EF;&#x4EE5;&#x4E3A;&#x8BE5;&#x7C7B;&#x578B;&#x7684;&#x503C;&#x5B9A;&#x4E49;&#x65B0;&#x7684;&#x884C;&#x4E3A;&#x3002;&#x8FD9;&#x4E9B;&#x884C;&#x4E3A;&#x8868;&#x793A;&#x4E3A;&#x4E00;&#x7EC4;&#x5173;&#x8054;&#x5230;&#x8BE5;&#x7C7B;&#x578B;&#x7684;&#x51FD;&#x6570;&#x96C6;&#x5408;&#xFF0C;&#x6211;&#x4EEC;&#x79F0;&#x4E3A;&#x7C7B;&#x578B;&#x7684;&#x65B9;&#x6CD5;&#x96C6;&#x3002;&#x6211;&#x4EEC;&#x5C06;&#x5728;&#x7B2C;&#x516D;&#x7AE0;&#x4E2D;&#x8BA8;&#x8BBA;&#x65B9;&#x6CD5;&#x7684;&#x7EC6;&#x8282;&#xFF0C;&#x8FD9;&#x91CC;&#x53EA;&#x8BF4;&#x4E9B;&#x7B80;&#x5355;&#x7528;&#x6CD5;&#x3002;</p>
<p>&#x4E0B;&#x9762;&#x7684;&#x58F0;&#x660E;&#x8BED;&#x53E5;&#xFF0C;Celsius&#x7C7B;&#x578B;&#x7684;&#x53C2;&#x6570;c&#x51FA;&#x73B0;&#x5728;&#x4E86;&#x51FD;&#x6570;&#x540D;&#x7684;&#x524D;&#x9762;&#xFF0C;&#x8868;&#x793A;&#x58F0;&#x660E;&#x7684;&#x662F;Celsius&#x7C7B;&#x578B;&#x7684;&#x4E00;&#x4E2A;&#x540D;&#x53EB;String&#x7684;&#x65B9;&#x6CD5;&#xFF0C;&#x8BE5;&#x65B9;&#x6CD5;&#x8FD4;&#x56DE;&#x8BE5;&#x7C7B;&#x578B;&#x5BF9;&#x8C61;c&#x5E26;&#x7740;&#xB0;C&#x6E29;&#x5EA6;&#x5355;&#x4F4D;&#x7684;&#x5B57;&#x7B26;&#x4E32;&#xFF1A;</p>
<pre><code class="lang-Go"><span class="hljs-keyword">func</span> (c Celsius) String() <span class="hljs-keyword">string</span> { <span class="hljs-keyword">return</span> fmt.Sprintf(<span class="hljs-string">&quot;%g&#xB0;C&quot;</span>, c) }
</code></pre>
<p>&#x8BB8;&#x591A;&#x7C7B;&#x578B;&#x90FD;&#x4F1A;&#x5B9A;&#x4E49;&#x4E00;&#x4E2A;String&#x65B9;&#x6CD5;&#xFF0C;&#x56E0;&#x4E3A;&#x5F53;&#x4F7F;&#x7528;fmt&#x5305;&#x7684;&#x6253;&#x5370;&#x65B9;&#x6CD5;&#x65F6;&#xFF0C;&#x5C06;&#x4F1A;&#x4F18;&#x5148;&#x4F7F;&#x7528;&#x8BE5;&#x7C7B;&#x578B;&#x5BF9;&#x5E94;&#x7684;String&#x65B9;&#x6CD5;&#x8FD4;&#x56DE;&#x7684;&#x7ED3;&#x679C;&#x6253;&#x5370;&#xFF0C;&#x6211;&#x4EEC;&#x5C06;&#x5728;7.1&#x8282;&#x8BB2;&#x8FF0;&#x3002;</p>
<pre><code class="lang-Go">c := FToC(<span class="hljs-number">212.0</span>)
fmt.Println(c.String()) <span class="hljs-comment">// &quot;100&#xB0;C&quot;</span>
fmt.Printf(<span class="hljs-string">&quot;%v\n&quot;</span>, c)   <span class="hljs-comment">// &quot;100&#xB0;C&quot;; no need to call String explicitly</span>
fmt.Printf(<span class="hljs-string">&quot;%s\n&quot;</span>, c)   <span class="hljs-comment">// &quot;100&#xB0;C&quot;</span>
fmt.Println(c)          <span class="hljs-comment">// &quot;100&#xB0;C&quot;</span>
fmt.Printf(<span class="hljs-string">&quot;%g\n&quot;</span>, c)   <span class="hljs-comment">// &quot;100&quot;; does not call String</span>
fmt.Println(<span class="hljs-keyword">float64</span>(c)) <span class="hljs-comment">// &quot;100&quot;; does not call String</span>
</code></pre>

                                
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